Honda CB 250


Make Model

Honda CB 250




Air cooled, four stroke, twin cylinder, OHC, 2 valve per cylinder


Bore x Stroke 56 x 50.6 mm
Compression Ratio 9.5:1


Ignition  /  Starting

Max Power

30 hp 21.9 kW @ 10500 rpm

Max Torque


Transmission  /  Drive

5 Speed  /  chain

Front Suspension

Rear Suspension

Front Brakes


Rear Brakes


Front Tyre


Rear Tyre


Wet Weight

170 kg

Fuel Capacity 

10 Litres

A drastic restyling of Honda's 250 in the late 1960s indicated new thinking at Hamamatsu coincident with the introduction of the CB450 and, later, the 750-4. The tall, narrow look of the CB72, with its humped petrol tank, spine frame and orward-inclined engine, was abandoned.

The new CB250, first shown in Europe at the Earls Court show of 1967, was much more in the western tradition, in looks, although still possessing above-average performance.

Running through several model numbers over the years, it long retained the essential specification of an upright parallel-twin engine of 56 x 50.6mm bore and stroke housed in a full-loop, tubed frame and driving the rear wheel by exposed chain via a five-speed integral gearbox.

The petrol tank was broader, more rounded, than on the CB72, and because the machine was longer and lower than before, the riding position lost its cramped but speed-suited layout Heavier than the original 250, but with no additional power to match, the CB250 was not quite the speedy performer that the CB72 had been.

For this reason it had something of a lukewarm reception from sport devotees in the UK, though its sales among people who wanted a reliable, economical workhorse for daily commuting far exceeded those of the previous
model, which had been unashamedly slanted at the 'enthusiast' market.

Successor to the CB72/73 series, the CB250 was by comparison of orthodox design, aimed to appeal to a bigger market

CB250K3: Twin-cylinder, ohc, 248cc (56 x 50.6mm). 30bhpl 10,500rpm. Five-speed gearbox. Coiligni'alternator. 2.5g petrol, 33Apt oil. Telescopic I pf. Tyres, 3.00 x Win (fr), 3.50 x Win (r). 3501b. 95mph.